Body surface localization of left and right atrial high-frequency rotors in atrial fibrillation patients: a clinical-computational study.

ABSTRACT:

Background

Ablation is an effective therapy in patients with atrial fibrillation (AF) in which an electrical driver can be identified.

Objective

The aim of this study was to present and discuss a novel and strictly noninvasive approach to map and identify atrial regions responsible for AF perpetuation.

Methods

Surface potential recordings of 14 patients with AF were recorded using a 67-lead recording system. Singularity points (SPs) were identified in surface phase maps after band-pass filtering at the highest dominant frequency (HDF). Mathematical models of combined atria and torso were constructed and used to investigate the ability of surface phase maps to estimate rotor activity in the atrial wall.

Results

The simulations show that surface SPs originate at

SUBMITTER: Rodrigo M 

PROVIDER: S-EPMC4292884 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature